Imports System.Data.SqlClient

Public Class Form1

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

        Dim connetionString As String

        Dim sqlCnn As SqlConnection

        Dim sqlCmd As SqlCommand

        Dim sql As String



        connetionString = "Data Source=ServerName;Initial Catalog=DatabaseName;User ID=UserName;Password=Password"

        sql = "Your SQL Statement Here ,  like Select * from product"



        sqlCnn = New SqlConnection(connetionString)

        Try

            sqlCnn.Open()

            sqlCmd = New SqlCommand(sql, sqlCnn)

            Dim sqlReader As SqlDataReader = sqlCmd.ExecuteReader()

            While sqlReader.Read()

                MsgBox(sqlReader.Item(0) & "  -  " & sqlReader.Item(1) & "  -  " & sqlReader.Item(2))

            End While

            sqlReader.Close()

            sqlCmd.Dispose()

            sqlCnn.Close()

        Catch ex As Exception

            MsgBox("Can not open connection ! ")

        End Try

    End Sub

End Class